U.S. Department of Energy | Office of Critical Minerals and Energy Innovation U.S. Department of Energy Office of Critical Minerals and Energy Innovation

Medium- and Heavy-Duty Vehicle Search

Find and compare alternative fuel vehicles, engines, and power sources for medium- and heavy-duty vehicles. Learn more about the data collection methods.

Light-Duty Vehicles

For light-duty vehicles, use the Find a Car tool on FuelEconomy.gov.

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252 vehicles
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New Flyer Xcelsior CNG 60'

CNG - Compressed Natural Gas
Maximum Seating: 62
Transmission: Allison, Voith, ZF
Power Source(s):
  • Cummins L9N 8.9L Near Zero

New Flyer Xcelsior Hybrid

Diesel/Hybrid Electric
Maximum Seating: 40
Transmission: Allison, BAE
Power Source(s):
  • Cummins ISB6.7
Hybrid System(s):
  • BAE Systems HybriDrive®
  • Allison Transmission hybrid drive

New Flyer Xcelsior Hybrid 60'

Diesel/Hybrid Electric
Maximum Seating: 61
Transmission: Allison, BAE
Power Source(s):
  • Cummins ISL 9L
Hybrid System(s):
  • BAE Systems HybriDrive®
  • Allison Transmission hybrid drive

Nitehawk Osprey II sweeper

Ethanol (E85)
Power Source(s):
  • Ford 6.8L V8
Note: Flex fuel vehicle based on the Ford F-250 chassis

Nitehawk Osprey II sweeper

Propane - Bi-fuel
Power Source(s):
  • GMC 6.6L V8
Note: Bifuel vehicle based on the GMC 2500HD chassis

Nitehawk Raptor II Electric Hybrid sweeper

Hybrid Electric
Power Source(s):
  • Isuzu 6.6L
Note: According to manufacturer: Based on the Isuzu NPR HD chassis, the all-electric sweeper operates independently of the gas-powered chassis.

Nitehawk Raptor II sweeper

Propane - Bi-fuel
Power Source(s):
  • GMC 6.6L V8
Note: Based on the Isuzu NPR chassis.

Optimal-EV E1

Electric
Electric-Only Range: 125 miles
Battery Capacity: 123 kWh
Transmission: Automatic
Power Source(s):
  • Optimal-EV 280 kW rear-mounted motor
Note: According to manufacturer: Ford E450 platform; 326 V, liquid-cooled Protera battery; <8 hr Level 2 charge, <2 hr DC Fast charge